Answer:
convection
Explanation:
Heat transfer by convection is caused by differences of temperature and density within a fluid.
Any photos so i can help you with that?
Answer:
0.0059
Explanation:
According to the question the seismic activity density is given by
Here,
Number of Earthquakes over a given time span = 424
The land area affected = 71300 mi²
So,
The seismic activity density is 0.0059
Engineers have designed experimental cars that use liquid hydrogen for fuel instead of gasoline. this is an example of Substitution.
Substitution is the process where one thing replaces other for a particular purpose. here liquid hydrogen is replacing the gasoline for fuel in car. hence the correct word to fill is Substitution.
<span>Is it true that nighttime air temperatures on a cloudy night are lower than they would be on a clear night?</span>